Star Butterfly, Marco Diaz, and Tom Lucitor from Star Vs the Forces of Evil are Polyamorous
seen from China
seen from China
seen from China

seen from Brazil

seen from United States
seen from Germany

seen from Australia
seen from United States
seen from United States
seen from Malaysia
seen from United Kingdom
seen from Germany

seen from United States

seen from United Kingdom
seen from United States
seen from China
seen from United Kingdom

seen from United States
seen from Kazakhstan
seen from South Korea
Star Butterfly, Marco Diaz, and Tom Lucitor from Star Vs the Forces of Evil are Polyamorous
Until disproved or confirmed in the next season, I consider Tom, Star and Marco are now a healthy and loving triad.
Stomco week - Day 1 - Ode to the finale
Posted on Fanfiction.net and AO3
“Meteora won’t find us in the underworld. We’ll be safe. And very, very warm.” Tom didn’t wait for an answer before heading down the stairs towards the entrance of the Underworld, hearing Star’s hesitant steps behind him. He knew he was asking a lot of her, to leave her kingdom and hide, but he was as resigned as she was. Without Queen Moon, there was little they could do at the moment. Hiding was their best option until they had any other opportunity.
But Star stopped on the first step, and when Tom turned around to encourage her onwards, she was looking at the sky with a face of horrified realization. “What am I doing?! I can’t leave!”
“Star?”
“I am the queen and these are my people,” she said, her eyes still locked away from him and Marco. “I have to stay and fight.”
“But Meteora will destroy you!” Tom tried to reason her, his pulse rising as he imagined Star, sweet and bright Star, the girl he had liked longer than any other person in his life, charging at the monstrosity that had decimated the entire kingdom.
However, Star had the best argument. Putting her wand away, she jumped into the air and her entire body was engulfed in a bright golden light that dazed Tom for a second. When he blinked his sight back, her dress was a warm yellow, her long hair parted in two thick braids that defied gravity. Huge butterfly wings had sprung from her back, supporting her in mid-air. Her inexplicable six arms and determined face made her look like a foreign goddess, and Tom forgot to breathe for a second, his mouth agape and three eyes wide open. “Stay here and take care of Marco,” she said, before swishing away through the air. In barely three seconds, she was out of sight.
Stomco week - Day 4 - Outfit Swap
Posted on Fanfiction.net and AO3
Star’s mirror phone alarm went off at seven. She groaned, her eyes still closed, and her hand padded around blindly to turn it off. When it finally stopped, she turned around and went back to her slumber.
The alarm went off again at five past seven. She groaned a little louder and reached out again to turn it off. “Star…” Marco whined, or maybe warned, neither could tell. She settled back down.
Ten past seven, the alarm went off again and Star finally opened her eyes, annoyed. She sat up and grabbed the mirror phone. “Just shut it,” Tom slurred angrily.
Star turned the alarm off and noticed vaguely that she had programmed about ten of them, every five minutes, and a note in the mirror phone said “get up and go to castle, royal biz, you promised”.
She blinked. Oh. Right. Recent events had called for some kind of paperwork meeting this morning and she had promised to take it seriously.
She really didn’t want to leave.
But she had promised. She had to be the better princess.
She quickly de-programmed all the alarms and relished for a moment the idea of going back to sleep, right here, right now.
Instead, she crawled out of bed, looking for her closet. She then realized this was not her room, so the closet was not going to be here. This was Tom’s room, in the Underworld, the general warmth of the place should have been a clear reminder. She rubbed her face, trying to wake up a little faster.
Stomco week - Day 6 - Marriage
Posted on Fanfiction.net and AO3
There was too much to write for what I imagined, so instead of making a detailed scene, here is basically a compilation of headcanons for their marriage.
The preparations for Tom, Star and Marco’s wedding took over half a year of planning, two weeks of training, three diplomats, an expert in demonic astrology, an a few terrified priests. No union had ever been so unheard of in the history of Mewni. What made it so difficult was mostly the fact they had to undergo all the ceremonies, with their respective cultures and customs, for their marriage to be accepted by Mewni, Earth and the Underworld alike. The event lasted three days, each one taking place in a different dimension.
Earth was actually the easiest part, because it didn’t include any kingdom inheritance. Marco’s parents were just set on the fact they needed their son to have a proper wedding for their family of non-dimension-hoppers to attend. Which is why it was the first one out of the three.
They traumatized about six priests and a half before giving up on trying to get married in a church, which Tom apologized multiple times for — after he calmed down from his fit of anger at Earth priests’ discriminating attitude. Eventually, they managed to rent an abandoned chapel and have Janna act as their officiant, finding out on the way that it’s a lot easier than it should be to become a minister in the US through online resources. Ferguson was Marco’s best man, and Brian acted as Tom’s, which was a surprisingly emotional decision. Star had Jackie be her maid of honor. Marco’s little sibling was the ring bearer.
Star’s dress was coming straight out of a fairytale, white and puffy, sparkling like it was sown with diamonds and topped with a magically created platinum tiara. Pretty much Giselle’s dress from Enchanted. Tom and Marco wore matching suits, much to the human’s displeasure but his family had insisted, so Tom promised he could wear whatever he wanted for the ceremony in the Underworld.
Stomco week - Day 5 - Polyamory?... Sure, why not?
Posted on Fanfiction.net and AO3
Takes place right after the finale.
Defeating Meteora hadn’t brought back everything she had destroyed. A lot of the kingdom was ruined and would take some time to build back up. Which could, and would, wait for a couple days.
“Star, I still think we should-”
“No, no, you stay in bed.”
“But-”
“The. Bed.” Star insisted, pushing Marco back down onto his pillow. Tom snorted amusedly at that, tucked in right next to the human boy.
Neither of them were used to sharing a bed, but their options were limited. Star’s bedroom was one of the castle’s areas that had miraculously survived with only very little damage. Other areas included some guest rooms, the royal dining room, the laundry room and a few corridors. So while Star had made arrangements so that the spaces that weren’t ruined too much could serve as temporary living space for the people that had their homes destroyed, she had kept her room as a private space for herself and the two boys she insisted needed to rest.
“Honestly, Star, I’m fine. Pretty sure we’re both fine.”
“No, Marco. Tom took a punch to the entire body and was out cold a couple hours ago.”
“Okay, but-”
“And you literally had your soul sucked out of you. By royal decree, everyone who had their soul sucked out by Meteora have to rest until the day after tomorrow.”
“But that’s everyone in the kingdom!”
“Yeah, I declared a general holiday. Now stop trying to get up, I promise you don’t need to come with me, I’ll be right back.”
Stomco week - Day 3 - Fun with Magic
Posted on Fanfiction.net and AO3
This OS is taking place about a year after the finale; Star, Tom and Marco are an established triad and things have calmed down with Eclipsa. I hope you'll like it!
Star had been away more frequently than usual. Several times a week, she would be gone for hours at a time. It wasn’t a drastic change, but it was noticeable enough for Marco to get curious about it.
She wouldn’t tell him where she was gone. The only other person who appeared to know was Tom, and he was also trying hard to keep Star’s activities a secret. Marco had tried to get an answer out of them both multiple times, without success. He’d be okay if it was something he just was not supposed to know, but it wasn’t even that. They always managed to switch his attention to something else, until the next time Star was gone.
This had been going on for weeks and Marco was really starting to feel irked by it all. He knew Star needed her privacy, but the fact her and Tom were specifically keeping him from knowing was upsetting.
That day, Star had been away for even longer than she usually was, and even Tom was nowhere to be found. Marco had been left hanging around in the palace, killing time until his girlfriend and boyfriend were back. He didn’t mind free time but god was he in a sour mood. As the evening darkened the sky, he waited for them, playing video games in his bedroom, which was now more of a private space than the place he slept most of the time – that would be Star’s bedroom.
Tom and Star didn’t even get a chance to speak first when they came back. Marco was up and ready to call them out as soon as he heard their footsteps in the corridor. There had been a few false alarms so far, mind you. But not this time. This time, when they stepped into his room, he glared at them both right in the eyes and snapped. “Okay, that’s it, this has been going on for too long! I won’t back down until you tell me where you were today!”
I found an app that helped make my art transparent and I was wondering if anyone wanted me to make all the startomco stuff transparent for you to use?